package com.ruoyi.framework.web.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.RegisterBody;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.exception.user.CaptchaException;
import com.ruoyi.common.exception.user.CaptchaExpireException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.framework.manager.factory.AsyncFactory;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysUserService;

/**
 * 注册校验方法
 * 
 * @author ruoyi
 */
@Component
public class SysRegisterService
{
    @Autowired
    private ISysUserService userService;

    @Autowired
    private ISysConfigService configService;

    @Autowired
    private RedisCache redisCache;

    /**
     * 检查用户名是否唯一
     */
    private boolean checkUserNameUnique(String username)
    {
        SysUser checkUser = new SysUser();
        checkUser.setUserName(username);
        return userService.checkUserNameUnique(checkUser);
    }

    /**
     * 注册
     */
    public String register(RegisterBody registerBody)
    {
        String msg = "", username = registerBody.getUsername(), password = registerBody.getPassword();
        SysUser sysUser = new SysUser();
        sysUser.setUserName(username);

        // 验证码开关
        boolean captchaEnabled = configService.selectCaptchaEnabled();
        if (captchaEnabled)
        {
            validateCaptcha(username, registerBody.getCode(), registerBody.getUuid());
        }

        // 验证用户账号
        if (StringUtils.isEmpty(username))
        {
            msg = "用户名不能为空";
        }
        else if (StringUtils.isEmpty(password))
        {
            msg = "用户密码不能为空";
        }
        else if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH)
        {
            msg = "账户长度必须在2到20个字符之间";
        }
        else if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH)
        {
            msg = "密码长度必须在5到20个字符之间";
        }
        else if (!checkUserNameUnique(username))
        {
            msg = "保存用户失败，用户名已存在";
        }
        else
        {
            sysUser.setNickName(username);
            sysUser.setPassword(SecurityUtils.encryptPassword(password));
            sysUser.setCreateTime(DateUtils.getNowDate());
            // 新增用户信息
            boolean registerResult = userService.registerUser(sysUser);
            if (registerResult)
            {
                return "";
            }
            else
            {
                return "注册失败，请联系管理员";
            }
        }
        return msg;
    }

    /**
     * 注册 - 兼容不同类型的注册对象（用于web和app接口）
     */
    public String register(Object registerBody)
    {
        RegisterBody body = new RegisterBody();
        try
        {
            // 使用反射获取必要的字段值，避免直接依赖特定的注册类
            java.lang.reflect.Method getUsernameMethod = registerBody.getClass().getMethod("getUsername");
            java.lang.reflect.Method getPasswordMethod = registerBody.getClass().getMethod("getPassword");
            java.lang.reflect.Method getCodeMethod = registerBody.getClass().getMethod("getCode");
            java.lang.reflect.Method getUuidMethod = registerBody.getClass().getMethod("getUuid");
            
            body.setMobilePhone((String) getUsernameMethod.invoke(registerBody));
            body.setPassword((String) getPasswordMethod.invoke(registerBody));
            body.setCode((String) getCodeMethod.invoke(registerBody));
            body.setUuid((String) getUuidMethod.invoke(registerBody));
        }
        catch (Exception e)
        {
            return "注册参数解析失败";
        }
        
        return register(body);
    }

    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code 验证码
     * @param uuid 唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid)
    {
        String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
        String captcha = redisCache.getCacheObject(verifyKey);
        redisCache.deleteObject(verifyKey);

        if (captcha == null)
        {
            throw new CaptchaExpireException();
        }
        if (!code.equalsIgnoreCase(captcha))
        {
            throw new CaptchaException();
        }
    }
}
